Never mind announcements and plans and ceremonial ground-breakings and wall-tappings; construction on the Second Avenue Subway is now, finally, actually, really here. Two lanes of Second Avenue in the Nineties will be closed to allow the MTA to drop the massive tunnel-boring down to subway level, and, as our compatriots at Curbed noted yesterday, work on the hole is beginning. In the above Curbed photo, what that low-Nineties stretch of Second is going to look like for the next decade or so. Fun!

Second Avenue Subway Scene: Barriers, Fences, Dismay [Curbed]